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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: QCISD(T)=FULL/aug-cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2v 1A1
Energy calculated at QCISD(T)=FULL/aug-cc-pVQZ
 hartrees
Energy at 0K-116.525048
Energy at 298.15K 
HF Energy-115.872997
Nuclear repulsion energy63.964787
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at QCISD(T)=FULL/aug-cc-pVQZ
Rotational Constants (cm-1) from geometry optimized at QCISD(T)=FULL/aug-cc-pVQZ
ABC
1.00784 0.73614 0.46468

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/aug-cc-pVQZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.860
C2 0.000 0.647 -0.499
C3 0.000 -0.647 -0.499
H4 0.000 1.576 -1.034
H5 0.000 -1.576 -1.034
H6 0.911 0.000 1.449
H7 -0.911 0.000 1.449

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.50531.50532.46422.46421.08501.0850
C21.50531.29401.07212.28642.24582.2458
C31.50531.29402.28641.07212.24582.2458
H42.46421.07212.28643.15193.07903.0790
H52.46422.28641.07213.15193.07903.0790
H61.08502.24582.24583.07903.07901.8228
H71.08502.24582.24583.07903.07901.8228

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.545 C1 C2 H4 145.401
C1 C3 C2 64.545 C1 C3 H5 145.401
C2 C1 C3 50.910 C2 C1 H6 119.339
C2 C1 H7 119.339 C2 C3 H5 150.054
C3 C1 H6 119.339 C3 C1 H7 119.339
C3 C2 H4 150.054 H6 C1 H7 114.270
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability